一个可见光响应的智能共价有机框架,具有桥接的亚二脊柱
Liang Qiang1, Hao Bai1, Xin-Yi Li1
1Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, The Key Laboratory of Applied Chemistry of Chongqing Municipality, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P. R. China.
Macromolecular rapid communications
|December 22, 2023
概括
研究人员创造了一种新的多孔材料,COF-bAzo-TFPB,它对光有反应. 这种共价有机框架表现出可逆光异构,使其在受控释放和紫外线敏感功能中的应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 纳米技术纳米技术
背景情况:
- 聚合有机框架 (COF) 是具有可调节性质的晶体多孔聚合物.
- 开发响应刺激的COF对于先进的应用至关重要.
- 含有亚的材料具有光响应能力.
研究的目的:
- 为了合成一种新的可见光响应的二维共价有机框架.
- 为了研究框架内的阿佐烯单元的光异构化行为.
- 探索在光控制过程中的潜在应用.
主要方法:
- 在3,3'-米诺-2,2'-乙烯桥接的阿佐本和1,2,4,5-四基 () -4-甲基之间发生冷凝反应.
- 由此产生的多孔材料 (COF-bAzo-TFPB) 的结构,表面积,结晶度和稳定性的特征.
- 在可见光照射下研究内置的基单元的光异构化.
主要成果:
- 成功合成了COF-bAzo-TFPB,这是一种二维多孔性共价有机框架.
- 该材料具有很大的表面积,良好的结晶性以及显著的热和化学稳定性.
- 在COF-bAzo-TFPB骨架中的阿佐单元在暴露于可见光时显示可逆光异构.
结论:
- 设计的链接器使COF-bAzo-TFPB中的光响应行为成为可能.
- 这项工作扩大了对光控制释放,客分子吸收和动态光交换的共价有机框架的实用性.
- 开发的材料显示出对UV敏感应用的前景.
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